Portable power unit



Oct 27, 1925 Fwd M1 vs ran df A rams Em Patented Oct. 27, 1925.

UNITED STATES PATENT OFFICE.

KARL ROTTGARDT, OF DAHLEM, NEAR BERLIN, GERMANY, ASSIGNOR T0 WESTING- HOUSE ELECTRIC.& MANUFACTURING COMPANY, A CORPORATION OF PENNSYL- VANIA.

PORTABLE POWER UNIT.

Application filed August 26, 1921.

To all "(U/L07, it may concern:

Be it known that I, KARL Ro'r'reano'r, residing at Dahlem, near Berlin, Germany, Fontanestr. 14, have invented certain new and useful Improvements in Portable Power Units, for which application has been filed in the following countries: Germany, October 30, 1913; Belgium, June 29, 1920; Denmark, February 18, 1920; England, July 9, 1920; Finland, November 25, 1920; France, June 18, 1920; Holland, July 27, 1920; Italy, June21, 1920; Norway, June 22, 1920; Poland, June 80, 1920; Spain, January 9, 1920; Sweden, December 30, 1919; Switzerland, July 22, 1920;v Bohemia, June 17, 1920; Hungary, February, 19, 1914:; So. Africa, September 27, 1920; Japan, February 15, 1921; Australia, July 10, 1920; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

For portable stations for wireless telegraphy, carrier-stands of saddle or stool form have hitherto been employed, on to which the various station apparatus were fastened. Employment of such carrier-stands, which consist of a single unit, is however very disadvantageous for transport for various reasons, and as the utility of a portable station is very closely related to the method of transport employed, a transport apparatus which impedes the bearer, whether man or animal, or diminishes his capacity and mobility owing to other drawbacks, frequently impairs this utility.

Hitherto in stations carried by animals, for example, stands, with the station parts fastened thereon, have been strapped on to the pack saddle. Consequently the stands had to be so dimensioned that they would lit, for example, each horse. For this reason the width of the stand must be chosen comparatively large and the consequence of this is that when a slender anin'ial is employed the load does not lie firmly on the saddle and swings to and fro especially at rapid rates of travel. The animal is therefore impeded and endangered. Moreover since the stand engages over the saddle, the center of gravity of the load is comparatively high and unfavourably placed. The result is that removal of the load and especially putting Serial No. 495,592.

the load on the saddle usually cause ditli- All these drawbacks are obviated by the following transporting device. There are employed not carrierstands, which consist,

of a rigid whole, but separate carrier-frames on to which are fastened the station parts. These frames are transported individually and united to form a rigid stand only for operating the station. A special construction of the frames renders it possible to effect this union into a rigid stand and resolution into its various parts with very little handling.

In the accompanying drawings:

Figure 1 is a side elevation,

Fig. 1 is an elevation of the opposite side,

Fig. 1 is an end elevation of the apparatus in condition for transportation,

Fig. 1 is an end view of the apparatus when erected ready for operation,

Fig' 2 is a detail view of the motor frame,

Fig. 2" is a top plan view of the generator, and

. Fig. 2 is a side View of the two frames united for operation.

In Fig. 1 is illustrated by Way of example the machine-saddle of a station to be borne by an animal. Fig. 1 shows the motor side and Fig. 1 the generator side. The driving motor is built rigidly in the frame 1. For transport the frame is suspended from and firmly strapped, in the position shown in Fig. l, in a holder 7 arranged on the sides of the saddle. The generator frame is carried in similar manner. Its frame is indicated by 2, the generator itself by 6. For operation, the two separate frames are lifted from the saddle, the extensions 3, a which fit together, are inserted the one into the other, and fastened by a clamping screw and in this way :1

rigid operating stand (Fig. 1 is produced.

Theadvantages of this. device are as follows. The various frames rest always firmly on the pack saddle independently of the size and strength of the carrying animal. The centre of gravity of the'lga d may be locatedas low'as seems desirable Without enlarging the stand and augment ing the load. Also for rapid travel there is no swinging of the load to: endanger the animal or apparatus. Moreover the layingeon and removal of the stand can be ef-. fected conveniently and qnickly. by one man by unstra-pping the frames and taking them from the side of the saddle one after the other. i

In portable stations to be carried by men, frames are, likewise employed as carriers of the apparatus. The frames either are provided with-pads So that they well fit the back of the bearer and can be carried like a knapsack or are fitt d t specia yform d cradles or baskets, on to which they are strapped for transport; Fig. 2 shows by Wayof xamp tr nspor the o m kind, transport of the Source of power beingrepre nt d- Fig 2 h ws the m t r f am 1- s the carrierrf m t the. me er M1616 pad he earers ba k, nd ca ed y the. round. by m a s 'Qf clam i SQPQWS and extensions 3, as is seen in FigQQ- Hav ng now particularly described and 'ascertainedthe nature of my said inventi on and in what manner the same is to be performed I declare that what I claim is: In a portable radio set, a prime-mover, a enerat r, 3 compr s ng. tw Pa one part c rrying a d P me m r n he other part carrying the generator, each of said parts haying a pa d conformingto the shape of the side of a pack animal, each of said parts haying feet with prongs for engaging the ground, said feet being on the side of the center of ravity of its part opposite the corresponding pad and means above said pads for fastening saidparts to gather whereby when the set rests on said feet the weight of said prime moyer and said generator will assist said fastening means In testimony whereof I aflix my signatnre.

DB' KARL BOTTGABDZ 

